JP4580782B2 - Seal structure for vehicle hood - Google Patents

Description

  The present invention relates to a sealing structure for a hood for a vehicle, and more particularly to a sealing structure between a hood frame and a hood cloth at the side of the hood.

  In vehicle hoods, it is important to secure a seal between the hood frame and the hood cloth because the hood opens and closes.

  In this case, the method of securing the sealing property varies depending on the operating form of the hood. For example, the one shown in Patent Document 1 is provided with a hood that opens and closes, but this hood has a structure in which a hood cloth is fixedly attached to the hood frame. The edge of the hood cloth is fixed and the edge is brought into contact with the weather strip provided on the hood frame to ensure the sealing performance. The required sealing performance can be easily obtained with a relatively simple structure. There is not much problem because it can be secured.

  On the other hand, what is shown in Patent Document 2 is provided with a hood frame that is developed and stored in a folded state and a hood cloth that is attached to the hood frame. This is due to the folding structure of the hood frame. Thus, the entire periphery of the hood cloth cannot be fixed to the hood frame, and the front end portion of the hood cloth is fixed to the hood frame, and the rear edge portion is fixed to the opening edge of the vehicle body. However, an intermediate portion thereof, that is, a portion along the door opening is not fixed to the hood frame.

  Therefore, the non-fixed portion of the hood approaches and approaches the hood frame when the hood is moved from the retracted position to the deployed position, and when the hood is moved from the deployed position to the retracted position. As the operation proceeds, it is separated from the hood frame. For this reason, it is not easy to ensure the sealing property between the peripheral portion of the hood and the hood frame in the deployed position.

  For this reason, various types of structures for ensuring sealing performance have been proposed for this type of hood, and the one shown in Patent Document 2 is attached along the periphery of the hood cloth when the hood is deployed. The pulling wire is pulled by the deployment displacement force of the hood frame to forcibly pull the hood peripheral portion toward the hood frame, and the drawn hood peripheral portion is drawn into the receiving groove formed on the hood frame side. By making contact with a weather strip provided in the groove, a sealing property between the hood frame and the peripheral portion of the hood cloth is ensured.

  Such a seal structure is frequently used for a hood structure having a hood structure in which the peripheral portion of the hood cloth is not fixed to the hood frame.

  Patent Document 3 does not relate to the sealing performance between the hood frame and the rim of the hood, but the movable roof and the opening edge of the movable roof that is attached to the opening provided on the vehicle body roof and opens and closes the opening. As a sealing structure between the two, a technique is shown in which the movable roof is pressed from the outside against a weather strip provided at the periphery of the opening to ensure a sealing property between them.

Japanese Utility Model Publication No. 5-26567 JP-A-8-207595.

Japanese Utility Model Publication No. 2-19627.

  However, as shown in Patent Document 2, the peripheral portion of the hood cloth is inserted into a receiving groove provided on the hood frame side and brought into contact with the weather strip in the receiving groove to ensure sealing performance. Although the sealing performance in the hood deployed state is secured, when the hood is deployed from the deployed position to the retracted position, the hood periphery is separated from the receiving groove by the frictional resistance between the hood periphery and the receiving groove. There is a risk that the operability of the hood will be hindered.

  As one of the solutions for such a problem, for example, as shown in Patent Document 3, a method of securing the sealing performance by pressing the peripheral portion of the hood cloth from the outside against the weather strip can be considered. Such a configuration is effective when the two members that are in contact with each other have high rigidity, but as described above, between the rigid hood frame and the extremely rigid hood cloth peripheral portion. Since it does not function effectively, it cannot be adopted as a seal structure in such a case.

  Accordingly, the present invention has an object to propose a sealing structure for a hood for a vehicle that can secure a high level of sealing performance between a hood frame and a hood cloth in a hood side portion by a simple and inexpensive structure. It was made as.

  In the present invention, the following configuration is adopted as a specific means for solving such a problem.

  In the first invention of the present application, the hood frame 10 is configured to be unfoldable and retractable and the hood cloth 9 that covers the outside of the hood frame 10. The side of the hood frame 10 is arranged so as to wrap around from the upper edge side to the rear edge side along the periphery of the door glass opening 20 on the vehicle body 1 side. In a vehicular hood seal structure in which the weather strip 41 attached to the frame 12 is brought into contact with the peripheral portion of the side portion 22 of the hood cloth 9 to seal between the two, the side of the hood cloth 9 A seal cloth 27 is stretched inside the peripheral portion of the portion 22 so as to be gradually displaced from the front side toward the rear side in the deployment direction of the hood 3 toward the inner side in the hood width direction. The Rukurosu 27 is characterized by being configured so as to abut on the weather strip 41.

  According to a second invention of the present application, in the seal structure for a hood for a vehicle according to the first invention, a reinforcing plate 26 having a concave shape is attached to the inside of the peripheral portion of the side portion 22 of the hood cloth 9, and the above-mentioned The seal cloth 27 is stretched so as to straddle the concave portion of the reinforcing plate 26.

  According to a third invention of the present application, in the sealing structure of the hood for a vehicle according to the second invention, the bending suppressing member 28 that suppresses the reinforcing plate 26 from bending toward the concave surface thereof. It is characterized by providing.

  In the present invention, the following effects can be obtained.

  (A) According to the seal structure for a vehicle hood according to the first invention of the present application, from the front side to the rear side in the deployment direction of the hood 3, inside the peripheral portion of the side portion 22 of the hood cloth 9. Since the seal cloth 27 is stretched while being inclined so as to be gradually displaced inward in the hood width direction, and the seal cloth 27 is brought into contact with the weather strip 41 in the deployed position, the hood 3 During the operation from the retracted posture to the deployed posture side, the seal cloth 27 comes into contact with the weather strip 41 and the seal cloth 27 exerts a wedge action, and the degree of contact increases as the operation proceeds. As a result, a high surface pressure is generated at the contact portion between the seal cloth 27 and the weather strip 41, whereby a high sheet pressure is generated between the seal cloth 27 and the weather strip 41. Sex is ensured.

  On the other hand, when the hood 3 is moved from the deployed position to the retracted position, the surface pressure between the seal cloth 27 and the weather strip 41 gradually decreases as the operation proceeds due to the inclination of the seal cloth 27. Then, the peripheral portion of the side portion 22 of the hood cloth 9 is easily separated from the weather strip 41, and the hood storing operation is performed smoothly.

  Thus, according to the sealing structure of the hood for a vehicle of the present invention, ensuring a high level of sealing performance in the deployed posture and ensuring smoothness of the hood storing operation are realized at the same time. Can be expected to greatly improve the commercial value of vehicle hoods.

  (B) According to the seal structure of the hood for a vehicle according to the second invention of the present application, the reinforcing plate 26 having a concave shape is attached to the inside of the peripheral portion of the side portion 22 of the hood cloth 9, and the seal cloth 27 is stretched so as to straddle the concave surface portion of the reinforcing plate 26. When the seal cloth 27 comes into contact with the weather strip 41 and the seal cloth 27 is bent, the elasticity of the reinforcing plate 26 is increased. The restoring force acts on the seal cloth 27 as a tension in a direction in which the seal cloth 27 is expanded, and a high surface pressure is secured between the seal cloth 27 and the weather strip 41 even when the seal cloth 27 is bent. And the effect as described in said (a) of the improvement of the sealing performance between these both is further accelerated | stimulated.

  (C) According to the vehicular hood seal structure according to the third invention of the present application, the reinforcing plate 26 is provided with the bending suppressing member 28 for suppressing the bending of the reinforcing plate 26 toward the concave surface side. Therefore, the bending suppression member 28 suppresses excessive bending of the reinforcing plate 26 (that is, a decrease in the tension of the seal cloth 27) when the seal cloth 27 contacts the weather strip 41. The effect of the above (b) due to the provision of the reinforcing plate 26 can be made even more reliable.

  Hereinafter, the present invention will be specifically described based on preferred embodiments.

  FIGS. 1 and 2 show a vehicle with a hood in which a hood 3 that can be unfolded and retracted is mounted in a compartment opening 2 of the vehicle body 1. In this vehicle, by setting the hood 3 in the unfolded posture, the vehicle compartment opening 2 is closed with the hood 3 as shown in FIG. In addition, by setting the hood 3 in the retracted position, as shown in FIG. 2, the hood 3 is removed from above the compartment opening 2 and the compartment opening 2 is opened. It is what is done. In the open state, the hood 3 is stored in the rear part of the passenger compartment.

  The hood 3 includes a hood frame 10 and a hood cloth 9 attached to the outside of the hood frame 10.

  The hood frame 10 is provided with a top frame 11 that is laid horizontally at the front end of the hood frame 10 and is detachably fixed to a front header 5 provided at the upper end of the front window glass 4 on the vehicle body 1 side. A pair of left and right side frames 12 that are fixed to the vehicle body 1 and curved and extend along the periphery of the door glass opening 20 of the vehicle body 1, and a bending operation of the front frame 13 and the rear frame 14 that constitute the side frame 12 are performed. A control link 18 (see FIG. 3) for control and three hood bones 15 to 17 arranged between the left and right side frames 12 and 12 are provided.

  Of the front frame 13 and the rear frame 14 constituting the side frame 12, the front frame 13 is located closer to the top frame 11 and corresponds to the front edge of the door glass opening 20. It has a substantially straight shape. On the other hand, the rear frame 14 is connected to the rear end of the front frame 13 so as to be relatively rotatable, and corresponds to the rear edge extending in the vertical direction from the upper edge rear portion of the door glass opening 20. , And has a shape that curves substantially orthogonally.

  As shown in FIG. 4, the front frame 13 and the rear frame 14 of the side frame 12 include a bent rail member 31 formed in a substantially U-shape and a flat shape fixed to one end side of the bent rail member 31. The bent rail material 31 has a hood weather strip 41 (corresponding to “weather strip 41” in the claims) and a door glass 6 weather strip. 42 is attached.

  The hood cloth 9 is attached to the outside of the hood frame 10 so as to cover it, and is located near the rear of the roof portion 21 that constitutes the passenger compartment ceiling and the door glass opening 20. A pair of left and right side portions 22 constituting the side surface of the passenger compartment and a rear portion 23 which is located at the rear portion of the passenger compartment to constitute the rear portion of the passenger compartment and is provided with a rear window glass 7 at the center thereof.

  The top cover 9 has a front edge portion of the roof portion 21 on the top frame 11, both side edges near the front portion of the roof portion 21 on the front frame 13 of the side frame 12, and the side portion 22. The lower end portion of the rear portion 23 is fixed to the vehicle body 1 side. Parts other than these, that is, a portion of the roof portion 21 corresponding to the rear frame 14 of the side frame 12 and a portion of the side portion 22 corresponding to the rear frame 14 of the side frame 12 are the side The frame 12 and the vehicle body 1 are not connected.

  Accordingly, these unconnected portions are brought into contact with the side frame 12 side in the deployed position of the hood 3, while being separated from the side frame 12 side in the retracted position of the hood 3. The For this reason, in particular, it is necessary to ensure a sufficient sealing property between the side frame 12 and the peripheral edge of the hood cloth 9 in the deployed posture.

  By the way, a pull-in wire 30 (see FIGS. 3 and 4) is disposed over the entire length of the hood cloth 9 along the side frame 12, and one end thereof is located on the front frame 13 side. The other ends are fixed to the lower end side of the rear frame 14, respectively. As the hood frame 10 is unfolded, tension is applied between both ends of the lead-in wire 30 so that the peripheral edge of the hood cloth 9 is attracted to the front frame 13 and the rear frame 14 side. It abuts on a hood weather strip 41 provided on the front frame 13 and the rear frame 14.

  However, the pulling action by the lead-in wire 30 works extremely effectively because the pulling force acts toward the inside of the corner portion in the vicinity of the corner portion of the rear frame 14, but the side portion 22 of the top cloth 9 has the pulling force. At the peripheral portion, the attracting force acts in the extending direction of the peripheral portion, so that the acting force is small, and the peripheral portion is less pressed against the hood weather strip 41. In addition, the peripheral portion is not connected to the rear frame 14 and its shape restraining action is weak in a free state, which is one of the reasons that the action of pressing the peripheral portion against the hood weather strip 41 is small. .

  Under such circumstances, in order to ensure the sealing performance of the rear edge portion of the side portion 22 of the hood cloth 9, the present invention is applied in this embodiment to provide the following unique structure. Adopted. Hereinafter, this will be described in detail with reference to FIGS.

  FIG. 3 shows the vicinity of the peripheral edge portion of the side portion 22 of the hood cloth 9. FIG. 4 shows a cross-sectional structure of the peripheral portion.

  First, the edge of the reinforcing plate 26 having a size capable of covering the peripheral portion of the side portion 22 and the edge of the belt-like seal cloth 27 having a predetermined width extending along the peripheral portion are shown in FIG. As shown in FIG. 5, the edge portion of the side portion 22 is overlapped and stitched to form a ball edge portion 24. Accordingly, the ball edge portion 24 constitutes the peripheral edge of the side portion 22. In this case, the lead-in wire 30 is sewn in the vicinity of the ball edge portion 24 along the ball edge portion 24.

  The reinforcing plate 26 is formed by cutting a thin resin plate into a substantially long rectangular shape, and has two sides in the short side direction (that is, the direction substantially orthogonal to the bead 24). Each side is bent moderately. In this case, the concave side (that is, the valley side) is directed toward the vehicle interior side at the folding point 26a on the side close to the ball edge portion 24, and the convex side (that is, the mountain side) at the far side bending point 26b. ) Is set so that the reinforcing plate 26 is bent toward the vehicle interior side.

  The lower end of the reinforcing plate 26 is connected to the third hood bone 17 via a leaf spring 34 as shown in FIG. 3, whereby the third hood of the reinforcing plate 26 is connected. The relative position of the hood inside and outside with respect to the bone 17 is set. In this case, the reinforcing plate 26 is disposed so as to be gradually displaced toward the inside of the hood as it goes from the fixed point 26d on the side of the ball edge 24 toward the tip 26c. In addition, although the arrow FR of FIG. 4 shows the moving direction at the time of expansion | deployment of the said top 3 and storing, the said reinforcement board 26 inclines with respect to this arrow FR direction.

  As shown in FIG. 4, the seal cloth 27 is disposed on the surface closer to the vehicle interior side of the reinforcing plate 26, that is, on the concave surface side of the side reinforcing plate 26, and one end thereof is together with one end 26 d of the reinforcing plate 26. The other end of the reinforcing plate 26 is fixed by stitching to the other bending point 26b across the one bending point 26a. In this case, when the seal cloth 27 is attached to the reinforcing plate 26, a predetermined tension is applied by the elastic restoring force of the reinforcing plate 26, and the seal cloth 27 is stretched flat. Further, in the stretched state of the seal cloth 27, when the hood 3 is set in the unfolded position (state shown in FIG. 4), the seal cloth 27 is attached to the hood weather strip 41 on the rear frame 14 side. It is suitably polymerized with the hollow portion 41a.

  Furthermore, a band 28 is attached in a stretched manner between the vicinity of the bending point 26a on the other side of the reinforcing plate 26 and the tip 26c.

  With this configuration, as described below, a high-level seal is provided between the peripheral portion of the side portion 22 of the hood cloth 9 and the rear frame 14 in a state where the hood 3 is set in the deployed posture. As a result, the ease of storing operation from the deployed posture of the hood 3 is realized.

  That is, when the hood 3 is moved from the retracted position to the deployed position, the side portion 22 of the hood cloth 9 moves in the direction of arrow F in FIG. The ball edge portion 24 is stopped in a state where it comes into contact with the lip portion 41b located near one end of the hood weather strip 41. On the other hand, the seal cloth 27 on the hood cloth 9 side is inclined with respect to the moving direction (arrow F-R direction), and abuts against the hollow portion 41a of the hood weather strip 41 in this inclined state. However, in this case, due to the wedge action of the inclined seal cloth 27, the seal cloth 27 moves in the direction of the arrow F while gradually increasing the pressing force against the hollow portion 41a of the hood weather strip 41. FIG. In the stopped state, the surface pressure between the seal cloth 27 and the hollow portion 41a of the hood weather strip 41 increases, and a high level of sealing performance is secured between them.

  Further, the seal cloth 27 is bent and deformed by contact with the hollow portion 41a of the hood weather strip 41. In this case, the reinforcing plate 26 is also bent following the bending deformation of the seal cloth 27. The seal cloth 27 is tensioned by the deformation and the elastic restoring force. As a result, even if the seal cloth 27 is bent and deformed, its tension, and hence the surface pressure with the hood weather strip 41, is secured, and a high level of sealing performance is maintained.

  Further, since the band 28 is provided on the reinforcing plate 26, the reinforcing plate 26 comes into contact with the seal cloth 27 from the one folding point 26 a with the contact of the hood weather strip 41 with the seal cloth 27. It is possible to suppress the bending of the seal cloth 27 due to excessive bending to the cloth 27 side. As a result, the surface pressure between the seal cloth 27 and the hollow portion 41a of the hood weather strip 41 is properly maintained, and a high level of sealing performance is maintained.

  In this manner, in addition to the provision of the seal cloth 27, the reinforcing plate 26 and the band 28 are provided, so that the sealing performance between the seal cloth 27 and the hollow portion 41a of the hood weather strip 41 is improved. This is a significant improvement.

  On the other hand, during the operation of the hood 3 from the unfolded position to the retracted position side, the surface pressure between the seal cloth 27 and the hollow portion 41a of the weather strip 41 as the operation proceeds due to the inclination of the seal cloth 27. Gradually decreases, the seal cloth 27 is easily separated from the weather strip 41, and the hood storing operation is performed smoothly.

It is a perspective view which shows the open state of the vehicle with a hood to which the seal structure which concerns on embodiment of this invention is applied. It is a perspective view which shows the closed state of the said vehicle. It is an enlarged view of the III part of FIG. It is IV-IV sectional drawing of FIG.

Explanation of symbols

1 ·· Body 2 ·· Opening 3 · · Top 4 · · Front windshield 5 · · Front header 6 · · Door glass 7 · · Rear wind glass 9 · · Top cloth 10 · · Top frame 11 · · Top frame 12 ・ ・ Side frame 13 ・ ・ Front frame 14 ・ ・ Rear frame 15 ・ ・ First hood bone 16 ・ ・ Second hood bone 17 ・ ・ Third hood bone 18 ・ ・ Control link 20 ・ ・ Door glass opening 21 .. Roof part 22 .. Side part 23 .. Rear part 24 .. Ball edge part 26 .. Reinforcement plate 27 .. Seal cloth 28.
30 .. Lead wire 31 .. Bending rail material 32 .. Flat tube material 41 .. Weather strip for hood 42 .. Weather strip for wind glass

Claims (3)

A hood frame (10) that can be unfolded and retracted and a hood cloth (9) that covers the outside of the hood frame (10), and between the deployed posture that covers the vehicle compartment opening (2) and the retracted posture that opens it. The hood (3) which can be freely changed in posture is provided, and in the unfolded posture, it is arranged to wrap around from the upper edge side to the rear edge side along the peripheral edge of the door glass opening (20) on the vehicle body (1) side. The weather strip (41) attached to the side frame (12) of the hood frame (10) is brought into contact with the peripheral portion of the side portion (22) of the hood cloth (9) so as to seal between them. A vehicle hood seal structure,
In a state of being inclined so as to be gradually displaced inward in the width direction of the hood (3) from the front side toward the rear side in the deployment direction of the hood (3) inside the peripheral portion of the side portion (22) of the hood cloth (9). A sealing structure for a hood for a vehicle, wherein a sealing cloth (27) is stretched and the sealing cloth (27) is in contact with the weather strip (41) in a deployed position. In claim 1,
A reinforcing plate (26) having a concave shape is attached to the inside of the peripheral portion of the side portion (22) of the top cloth (9), and the seal cloth (27) attaches the concave portion of the reinforcing plate (26). A vehicular hood seal structure characterized by being stretched over the vehicle. In claim 2,
A sealing structure for a hood for a vehicle, wherein the reinforcing plate (26) is provided with a bending suppressing member (28) for suppressing the bending of the reinforcing plate (26) toward the concave surface.

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